Keith Black Pistons KB227-040 Fits BBC 427 Dome 26cc Bore 4.290

Fits BB Chevy 427, Bore 4.290, Stroke 3.760, Rod Length 6.135, Dome 26cc, 1 Valve Relief, Compression Height 1.765, Set of 8 Pistons

Special Price $442.35 Regular Price $449.09

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⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

Description

Keith Black Hypereutectic pistons are a great choice for high performance marine, drag race, circle track, street or towing application builds. The low expansion 390 alloy with 16 percent silicon allows for a tighter piston to wall running clearance.

Fully machined head and valve reliefs

Triple Spiral Lock Rings

CNC machined pin bores produce straight and accurately sized bores

Accumulator Groove aids with compression ring seal

Machined in Oil Returns

Diamond Finished Skirts

Mini Grooves to reduce scuffing and overheating

Wrist pins and spiral lock included

5/64 x 5/64 x 3/16 rings not included

Compression Ratio 119cc 9.7:1

Advertised piston weight 737 grams, 158 gram wrist pin

OE Deck Height 9.800"

Note: Standard bore size is 4.250

Note: Centered Pin. Fits Open Chamber Head

Specifications

More Information
CNC Part Number	UEM-KB227-040
Price	$449.09
Manufacturer's Part Number	KB227-040
Brands	Keith Black
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy BB
Bore Size	4.290
Crankshaft Stroke	3.760
Rod Length	6.135
Piston Type	Dome
Compression Height	1.765
Piston Material	Hypereutectic
Piston Ring Size	5/64 5/64 3/16
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING